Use camelCase for python function definition

CURA-10599

Co-authored-by: Jaime van Kessel <nallath@gmail.com>

cura/Machines/MachineNode.py

@@ -168,7 +168,7 @@ class MachineNode(ContainerNode):
 
         return self.global_qualities.get(self.preferred_quality_type, next(iter(self.global_qualities.values())))
 
-    def is_excluded_material(self, material: MaterialNode) -> bool:
+    def isExcludedMaterial(self, material: MaterialNode) -> bool:
         """Returns whether the material should be excluded from the list of materials."""
         for exclude_material in self.exclude_materials:
             if exclude_material in material["id"]:

cura/Machines/VariantNode.py

@@ -60,7 +60,7 @@ class VariantNode(ContainerNode):
             materials = list(materials_per_base_file.values())
 
         # Filter materials based on the exclude_materials property.
-        filtered_materials = [material for material in materials if not self.machine.is_excluded_material(material)]
+        filtered_materials = [material for material in materials if not self.machine.isExcludedMaterial(material)]
 
         for material in filtered_materials:
             base_file = material["base_file"]

tests/Machines/TestVariantNode.py

@@ -46,7 +46,7 @@ def getInstanceContainerSideEffect(*args, **kwargs):
 def machine_node():
     mocked_machine_node = MagicMock()
     mocked_machine_node.container_id = "machine_1"
-    mocked_machine_node.is_excluded_material = MagicMock(return_value=False)
+    mocked_machine_node.isExcludedMaterial = MagicMock(return_value=False)
     mocked_machine_node.preferred_material = "preferred_material"
     return mocked_machine_node
 
@@ -96,7 +96,7 @@ def test_variantNodeInit(container_registry, machine_node):
 
 def test_variantNodeInit_excludedMaterial(container_registry, machine_node):
     machine_node.exclude_materials = ["material_1"]
-    machine_node.is_excluded_material = MagicMock(side_effect=lambda material: material["id"] == "material_1")
+    machine_node.isExcludedMaterial = MagicMock(side_effect=lambda material: material["id"] == "material_1")
     node = createVariantNode("variant_1", machine_node, container_registry)
 
     assert "material_1" not in node.materials